PHP_UML is a PHP parser, an XMI generator and a documentation tool.
Practically, with PHP_UML, you will be able to feed a UML CASE tool, like Rational Rose or Argouml, with a UML representation of existing PHP source code. This way, you get an instant overview of a PHP application, with all the usual functions of a software design tool (such as class diagrams exportation, refactoring of object-oriented applications, or automatic code generation).

PHP_UML:
- Can generate UML/XMI files in version 1.4, or in version 2.1 (logical, component, and deployment views)
- Can generate an API documentation in HTML format
- Can generate PHP code (code skeleton) from a given XMI file
- Can convert UML/XMI content from version 1.4 to version 2.1